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Diffstat (limited to 'gm/verttext.cpp')
-rw-r--r-- | gm/verttext.cpp | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/gm/verttext.cpp b/gm/verttext.cpp new file mode 100644 index 0000000..0f3cb3b --- /dev/null +++ b/gm/verttext.cpp @@ -0,0 +1,90 @@ +/* + * Copyright 2011 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + + +#include "gm.h" +#include "SkCanvas.h" + +namespace skiagm { + +#define TEXT_SIZE 48 +static const char gText[] = "Hello"; +static const size_t gLen = sizeof(gText) - 1; + +class VertTextGM : public GM { +public: + VertTextGM() {} + +protected: + + SkString onShortName() { + return SkString("verttext"); + } + + SkISize onISize() { return make_isize(640, 480); } + + static void drawBaseline(SkCanvas* canvas, const SkPaint& paint, + SkScalar x, SkScalar y) { + SkScalar total = paint.measureText(gText, gLen); + + SkPaint p; + p.setAntiAlias(true); + p.setColor(0x80FF0000); + canvas->drawLine(x, y, + paint.isVerticalText() ? x : x + total, + paint.isVerticalText() ? y + total : y, + p); + + p.setColor(0xFF0000FF); + SkScalar adv[gLen]; + paint.getTextWidths(gText, gLen, adv, NULL); + for (size_t i = 0; i < gLen; ++i) { + canvas->drawCircle(x, y, SK_Scalar1 * 3 / 2, p); + if (paint.isVerticalText()) { + y += adv[i]; + } else { + x += adv[i]; + } + } + canvas->drawCircle(x, y, SK_Scalar1 * 3 / 2, p); + } + + virtual void onDraw(SkCanvas* canvas) { + SkScalar x = SkIntToScalar(100); + SkScalar y = SkIntToScalar(50); + + for (int i = 0; i < 4; ++i) { + SkPaint paint; + paint.setAntiAlias(true); + paint.setTextSize(SkIntToScalar(TEXT_SIZE)); + + + paint.setVerticalText(false); + drawBaseline(canvas, paint, x, y); + canvas->drawText(gText, gLen, x, y, paint); + + paint.setVerticalText(true); + drawBaseline(canvas, paint, x, y); + canvas->drawText(gText, gLen, x, y, paint); + + x += SkIntToScalar(40); + y += SkIntToScalar(120); + + canvas->rotate(SkIntToScalar(-15)); + } + } + +private: + typedef GM INHERITED; +}; + +/////////////////////////////////////////////////////////////////////////////// + +static GM* MyFactory(void*) { return new VertTextGM; } +static GMRegistry reg(MyFactory); + +} |